新目标九年级英语： Unit9 when was it invented period 4课件 【最新】九年级英语 Unit9 when was it invented period 4课件九年 级英语 课件 When was it invented ? Period 4 【最新】九年级英语 Unit9 when was it invented period 4课件九年 级英语 课件 homework 用单词适当形式填空 -invent, slipper, use, heat, help 1. whats a pen - for? 2. when was the piano - ? 3. I think paper is the most - invention. 4. what are electric (电 ) - invented? 5. Is this your - ice cream scoop? used invented helpful heated slippers 【最新】九年级英语 Unit9 when was it invented period 4课件九年 级英
